org.openrdf.sail.federation.algebra

Class AbstractNaryTupleOperator

java.lang.Object

org.openrdf.query.algebra.QueryModelNodeBase

org.openrdf.sail.federation.algebra.AbstractNaryOperator<TupleExpr>

org.openrdf.sail.federation.algebra.AbstractNaryTupleOperator

All Implemented Interfaces:

Cloneable, QueryModelNode, TupleExpr

Direct Known Subclasses:

NaryJoin

public abstract class AbstractNaryTupleOperator
extends AbstractNaryOperator<TupleExpr>
implements TupleExpr

An abstract superclass for n-ary tuple operators which have one or more arguments.

Constructor Summary

Constructors

Constructor and Description
AbstractNaryTupleOperator()
AbstractNaryTupleOperator(List<? extends TupleExpr> args) Creates a new n-ary tuple operator.
AbstractNaryTupleOperator(TupleExpr... args) Creates a new n-ary tuple operator.

Method Summary

Modifier and Type	Method and Description
AbstractNaryTupleOperator	clone() Returns a (deep) clone of this query model node.
Set<String>	getAssuredBindingNames() Gets the names of the bindings that are guaranteed to be present in the results produced by this tuple expression.
Set<String>	getBindingNames() Gets the names of the bindings that are, or can be, returned by this tuple expression when it is evaluated.

Methods inherited from class org.openrdf.sail.federation.algebra.AbstractNaryOperator

addArg, getArg, getArgs, getNumberOfArguments, removeArg, replaceChildNode, setArg, visitChildren

Methods inherited from class org.openrdf.query.algebra.QueryModelNodeBase

getParentNode, getSignature, nullEquals, replaceNodeInList, replaceWith, setParentNode, toString

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.openrdf.query.algebra.QueryModelNode

equals, getParentNode, getSignature, replaceChildNode, replaceWith, setParentNode, toString, visit, visitChildren

Constructor Detail

AbstractNaryTupleOperator

public AbstractNaryTupleOperator()

AbstractNaryTupleOperator

public AbstractNaryTupleOperator(TupleExpr... args)

Creates a new n-ary tuple operator.

AbstractNaryTupleOperator

public AbstractNaryTupleOperator(List<? extends TupleExpr> args)

Creates a new n-ary tuple operator.

Method Detail

getBindingNames

public Set<String> getBindingNames()

Description copied from interface: TupleExpr

Gets the names of the bindings that are, or can be, returned by this tuple expression when it is evaluated.

Specified by:

getBindingNames in interface TupleExpr

Returns:

A set of binding names.

getAssuredBindingNames

public Set<String> getAssuredBindingNames()

Description copied from interface: TupleExpr

Gets the names of the bindings that are guaranteed to be present in the results produced by this tuple expression.

Specified by:

getAssuredBindingNames in interface TupleExpr

Returns:

A set of binding names.

clone

public AbstractNaryTupleOperator clone()

Description copied from interface: QueryModelNode

Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.

Specified by:

clone in interface QueryModelNode

Specified by:

clone in interface TupleExpr

Overrides:

clone in class AbstractNaryOperator<TupleExpr>

Returns:

A deep clone of this query model node.